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(单词翻译:双击或拖选)
Many people enjoy having plants inside their homes, especially when it is cold outside.
But sometimes houseplants need a little help. If they are struggling, houseplants will let you know. They show discolored leaves, and their stems droop1 – or no longer stand strong or tall. And there will be little or no growth.
"Plants send signals simply by the way they look," said Dawn Pettinelli, an Extension educator at the University of Connecticut. "If they aren't getting enough light, the leaves will yellow or turn brown and they will be slow to develop."
Leaves with the wrong colors can also mean other problems. These include root problems, insects hurting the plant, the wrong soil moisture, or bad light conditions or temperatures.
One of America's most popular houseplants is the African violet. It has violet, or purple-colored flowers. These plants do not like to be cold, but they also get stressed when it is too warm.
Pettinelli said they start to droop when they are cold. And they will not flower if they are hot.
A good way to help renew tired houseplants is by giving them a plant "haircut." In the gardening world, cutting back plants is called "pruning."
Pruning serves many needs. Diana Alfuth is a gardening expert with University of Wisconsin Extension. She said pruning helps with shaping, removing dead matter, and keeping the plants from drooping3.
"Pruning then results in strong new growth," she said. It also helps keep a plant bushier—meaning thicker and more round.
Slow-growing or tree-type houseplants do not do well with major cutting back, she said. Avoid pruning plants like palms, pines and orchids4.
Pruning is also a way to start new plants. You can take the cuttings from pruning and grow new plants.
Want a houseplant that needs less care than others?
"Succulents are great," Alfuth said. They can go without water for long periods of time. They grow slowly, so they rarely need pruning or a new pot.
Houseplants diet
A houseplant's diet is important. So is the timing5 of when you give them fertilizers—nutrients for growth.
"Houseplants should not be fertilized7 during winter when days are short," Alfuth said. "Fertilize6 in late winter as days get longer and plants wake up and will need fertilizer to put on growth during spring."
And do not forget to dust.
"When plants start touching8 the floor, they start collecting dust," Pettinelli said. "If covered with dust, photosynthesis9 is reduced and the plants start losing some of their chemical energy for growth."
Watering plants too much is a leading cause of losing houseplants. So, be careful not to overwater. "Plants lose oxygen when they get too much water," Pettinelli said. "Especially the roots. They'll drown."
Check to see if your plants' roots are overgrown in the bottom of the pot. That means you should re-pot the plant in a new, larger pot. But be sure the pots have holes cut in the bottoms so that extra water can get out.
Words in This Story
stem – n. the main long and thin part of a plant that rises above the soil and supports the leaves and flowers
moisture – n. a small amount of a liquid like water, that makes something wet or moist
stressed – adj. feeling worried or anxious, having a lot of pressure
succulents – n. plants with thick, heavy leaves or stems that store water
photosynthesis – n. the process by which a green plant turns water and carbon dioxide into food when exposed to light
1 droop | |
v.低垂,下垂;凋萎,萎靡 | |
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2 pruning | |
n.修枝,剪枝,修剪v.修剪(树木等)( prune的现在分词 );精简某事物,除去某事物多余的部分 | |
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3 drooping | |
adj. 下垂的,无力的 动词droop的现在分词 | |
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4 orchids | |
n.兰花( orchid的名词复数 ) | |
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5 timing | |
n.时间安排,时间选择 | |
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6 fertilize | |
v.使受精,施肥于,使肥沃 | |
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7 Fertilized | |
v.施肥( fertilize的过去式和过去分词 ) | |
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8 touching | |
adj.动人的,使人感伤的 | |
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9 photosynthesis | |
n.光合作用 | |
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